同时复制图片和文字到剪贴板

2007-01-01 12:45:00

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import java.io.*;
class ClipboardTest2
{
    JFrame mainFrame;
    JPanel mainPanel;
    JButton button;
    Clipboard cb;
    public ClipboardTest2() {
        mainFrame = new JFrame (  );
        mainPanel = new JPanel ();
        button = new JButton ("Button");
        button.setIcon( new ImageIcon("candle.png") );

        cb = Toolkit.getDefaultToolkit().getSystemClipboard();
        button.addActionListener( new ActionListener(){
            public void actionPerformed( ActionEvent e){
                ButtonTextAndImageTransferable btait =
                    new ButtonTextAndImageTransferable(button);
                cb.setContents( btait,btait );
            }
        });

        mainPanel.add( button );
        mainFrame.getContentPane().add( mainPanel );
        mainFrame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        mainFrame.pack();
        mainFrame.setLocationRelativeTo(null);
        mainFrame.setVisible( true );
    }
    public static void main(String[] args)
    {
        SwingUtilities.invokeLater( new Runnable(){
            public void run(){
                new ClipboardTest2();
            }
        });
    }
}
class ButtonTextAndImageTransferable extends ImageIcon implements Transferable,ClipboardOwner{
    DataFlavor[] flavors;
    JButton button;
    public void lostOwnership(Clipboard clipboard, Transferable contents){
        System.out.println( "lostownership" );
    }
    public ButtonTextAndImageTransferable( JButton button){
        flavors = new DataFlavor[2];
        flavors[0] =  DataFlavor.stringFlavor;
        flavors[1] =  DataFlavor.imageFlavor;
        this.button = button ;
    }
    public DataFlavor[] getTransferDataFlavors(){
        return flavors;
    }
    public Object getTransferData(DataFlavor flavor){
        if( flavor.equals( flavors[0] ) )
        {
            return button.getText();
        }else{
            if( flavor.equals( flavors[1] ) ){
                ImageIcon icon = (ImageIcon)button.getIcon();
                return icon.getImage();
            }
        }
        return null;
    }
    public boolean isDataFlavorSupported(DataFlavor flavor){
        if( flavor.equals( flavors[0] ) ||
            flavor.equals( flavors[1] ))
                return true;
        return false;
    }
}

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同时复制图片和文字到剪贴板